272  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,   1! »<)<>,  PART    I. 
Table  3.     Analyses  of  fuller's  earth,  clay,  and  />ij><  clay. 
CALCULATED  TO  100  PEE  CENT. 
Owl  fuller's  earthra 
<  >riginal  earth 
Insoluble  in  dilute  liri 
Insoluble  in  dilute  BC1  and  NaOH... 
Insoluble  in  dilute  IK'1  and  soluble 
in  NaOH 
Insoluble  in  concent  rated  IK'l 
Insoluble  in  H2S04and  NaOH 
Insoluble  in   Ihso,  and  soluble  in 
NaOH 
Soluble  in  Na<  »n  alone 
Fairbank  fuller's  earth:  & 
<  >riginal  earth    
Insoluble  in  dilute  net 
Luble  in  dilute  11(1  and  soluble 
in  NaOH 
Insoluble  in  concenl  rated  HC1 
Insoluble  in  HjSO* 
ible  in  B2SO4  and  NaOH 
ile  in  \;ii  »II  alone 
Eimer  &  Amend  fuller's  earth :  c 
Original  earth 
Insoluble  in  concenl  rated  IK'l 
[nsolul  le  in  II-jSi  >4 
Insoluble  in  H2SO4  and  NaOH.... 
Clay:'/ 
A.s  received 
ible 
Pipe  clay:  c 
As  received    
Luble  in  1  ( -s <  >< 
Si()2. 
18.20 
74.20 
70.70 
79.  72 
90.88 
91.10 
83.  17 
82.  I 
59.  II 
66.60 
18.80 
86  so 
11.89 
75.30 
91.95 
16.10 
A.I2O3.   Fe203. 
17.80 
11'. '.Ml 
15.80 
10.52 
3.  K» 
1.35 
2  81 
17.60 
19.90 
19.-20 
n.d. 
5.95 
13.79 
n.d. 
21.00 
17.20 
3.67 
12.00 
II 
2.94 
CaO. 
2  09  10.84 
1.94  c.05 
1.70         .OS 
Tr 
c  05 
L.09       3.46 
14.02 
7.1  I 
5.54 
.  is 
n.d.  n.d. 
.27 
1.83  n.d. 
1.67  c.80 
n.d.      n.d. 
7    si  I 
.-..III 
Tr. 
2  80 
Tr. 
.61 
5.  M 
MgO.  COs. 
3.33 
n.d. 
n.d. 
n.d. 
2.90 
1.67 
n.d. 
c.27 
n.d. 
n.d 
n.d. 
.76 
n.d. 
n.d. 
i,     ! 
7.93 
(M 
n.d. 
n.d. 
n.d. 
n.d. 
n.d. 
Il,<>. 
8.91 
9.28 
9.36 
9.58 
5.  1 1 
n.d. 
Ps05. 
s  06 
n.d. 
Total. 
1.20     100 
n.d.       90.37 
n.d.       97.64 
n.d. 
n.d. 
n.d. 
99.  32 
99.  17 
100 
n.d.      Km 
n.d.      urn 
6.75       .06       99.29 
100 
n.d. 
C98.74 
98.  n 
92.01 
n.d. 
99.  in 
100 
100.66 
90.50 
n.d.       97.02 
n.d        96.01 
*.  1 1 
n.d. 
n.d. 
n.d. 
1.55 
n.d. 
n  d 
n.d. 
n.d. 
n.d. 
n.d. 
n.d. 
7.50 
n.d. 
n.d. 
n.d. 
3.67 
n.d. 
n.d. 
n.d. 
12.82     n.d. 
n.d      n.d. 
99.92 
100 
PER  1  !  \  I    OF  ORIGIN  \l.   E  \  l;  TH 
Owl  fuller's  ear1h:'i 
Original  earth 
uble  in  dilute  HC1 
Insoluble  in  dilute  IK'l  and  \    "H 
tble  in  dilute  IK'l  and  soluble 
in  NaOH 
Insoluble  in  concent  rated  1 1<  1 . . 
Insoluble   in  concent  rated    IK']  and 
NaOH 
Insoluble  in  concentrated    IK'l  and 
soluble  in  NaOH 
Insoluble  in  HjS<  ■  »H 
Insoluble   in    BsS<  U  and   soluble   in 
NaOH 
soluble  in  NaOH 
Fairbank  fuller's  earth:  b 
Original  earth 
Insoluble  in  dilute  IK'l 
Insoluble  in  dilute  IK  'I  and  soluble 
in  NaOH 
Insoluble  in  concentrated  H« 
Insoluble   in  concent  rated    IK'l   and 
soluble  in  NaOH 
Insoluble  in  FTjSO* 
Insoluble  in  HsSO<and  NaOH. 
soluble  in  NaOH 
Eimer  &  Amend  fuller's  earth:  c 
Original  earth 
1 1, -..lubie  in  concent  rated  IK'l 
Insoluble  in  H2SO4 
Insoluble  in  \\  -'u  and  NaOH 
Soluble  in  NaOH 
Soluble  in  .\a,<'<>3 
Clay:'' 
Vs  received 
Insoluble  in  II;S<  >< 
Soluble  in  Na2COa 
Pipe  ci 
A  s  received 
Insoluble  in  Ih-so, 
IS     I", 
25.24 
22.72 
18.20 
59.  I! 
59.  II 
59.  II 
53.21 
59.21 
5 
11.89 
60  20 
60.  "i 
5.37 
10.38 
2.60 
61.62 
61.50 
.25? 
16.10 
46.  _' 
17.80 
v    1  ; 
5.64 
1  85 
n.d. 
n.d. 
.  11 
1 .  32 
19.9 
17.36 
n.d. 
1.  10 
n.d. 
2.33 
.91 
n.d. 
21 
13.56 
2.  m 
n.d. 
n.d. 
22.82 
2  35 
n.d. 
II 
1.  I 
in  si       3.33 
I.  II 
e.u.;      n.d. 
n.d. 
n.d. 
c.02 
n.d. 
n.d. 
.  13 
n.d. 
.1') 
n.d. 
n.d. 
n.d. 
2  80 
Tr. 
.  in 
.  in 
n.d. 
n.d. 
} 
n.d'. 
n.d. 
n.d. 
n.d. 
n.d. 
2  90 
I  :,l 
n.d. 
e.l'.i 
n.d. 
n.d 
n.d. 
n.d. 
■.•.r,n 
1.97 
.50 
n.d. 
n.d. 
n.d. 
n.d. 
52     n.d. 
.1       n.d. 
n.d.     n.d. 
8.91 
6  06 
2-78 
n.d. 
1.20 
n.d. 
n.d. 
n.d. 
.1.. I. 
n.d. 
n.d.      n.d. 
n.d. 
n.d.     n.d. 
n.d.     n.d. 
.111      6.75 
...  Hi 
n.d. 
3.07 
.06 
n.d. 
n.d. 
n.d. 
7.50 
n.d 
n.d 
n.d 
2.  in 
n.d 
n.d. 
n.d 
n.d. 
n.d 
n.d. 
n.d 
2.09 
1 .  27 
.69 
Tr. 
n.d. 
n.d. 
.12 
7.  I  I 
5.02 
100.30 
65.33 
35.67 
28.24 
C52.85 
'.1.22 
n.d. 
in.  12 
c  17 
c  in.  1 
c99  29 
eSO.13 
n.d.         n.d. 
.62      C68.9 
n.d.  n.d.  n.d. 
n.d.  n.d.  1.17 
n.d.  n.d.  .11 
n.d.  n.d.  n.d. 
7.  so 
1.03 
Tr. 
n.d. 
n.d. 
n.d 
n.d. 
n.d 
n.d. 
n.d. 
n.d.      8.06? 
n.d.     n.d. 
11.. I.      n.d. 
n.d. 
n.d. 
12.82 
n.d. 
n.d. 
63.68 
6.58 
n.d. 
99. 1 
C79.96 
1,:,  ",-, 
7..r, 
n.d. 
n.d. 
97.02 
66.5 
n.d. 
99.92 
17.6 
"Sample  from  owl  Cigar  Co.,  Quincy,  Fla. 
b  Sample  from  N.  K.  Fairbank  Co.,  Chicago,  III. 
'  Sample  from  Eimer  <v  Amend,  New  York.  N.  V. 
'•'  Residual  limestone  clay  from  Staunton,  Va. 
